Wilbur has welcomed his new mates with enthusiasm - although the alpacas are still getting used to the pig.
Wilbur's enthusiasm is shared by the children, who take it in turns to feed Vinnie and Arlo every day.
Ms Baker said the alpacas were very tame around humans, and reasonably low maintenance to care for.
"They need to be shorn once a year - and the farm where they came from had them shorn before they came to us - and they'll get a vet check once a year too."
The alpacas live in a large enclosure, which they share with the pig and the chickens. It includes flat open space and a wooded area for shade.
Ms Baker said having so many animals around was very popular with the kids.
"It's really good for them to learn how to look after animals," she said.